In his speech [at the Society for Personality and Social Psychology’s conference] and in an interview, Dr. [Jonathan] Haidt argued that social psychologists are a ‘tribal-moral community’ united by ‘sacred values’ that hinder research and damage their credibility — and blind them to the hostile climate they’ve created for non-liberals. “I consider myself very middle-of-the-road politically: a social liberal but fiscal conservative. Nonetheless, I avoid the topic of politics around work,” one [non-liberal graduate] student wrote. “Given what I’ve read of the literature, I am certain any research I conducted in political psychology would provide contrary findings and, therefore, go unpublished. Although I think I could make a substantial contribution to the knowledge base, and would be excited to do so, I will not.”

The fields of psychology, sociology and anthropology have long attracted liberals, but they became more exclusive after the 1960s, according to Dr. Haidt. “The fight for civil rights and against racism became the sacred cause unifying the left throughout American society, and within the academy,” he said, arguing that this shared morality both “binds and blinds.”

“If a group circles around sacred values, they will evolve into a tribal-moral community,” he said. “They’ll embrace science whenever it supports their sacred values, but they’ll ditch it or distort it as soon as it threatens a sacred value.” It’s easy for social scientists to observe this process in other communities, like the fundamentalist Christians who embrace “intelligent design” while rejecting Darwinism. But academics can be selective, too, as Daniel Patrick Moynihan found in 1965 when he warned about the rise of unmarried parenthood and welfare dependency among blacks — violating the taboo against criticizing victims of racism.

“Moynihan was shunned by many of his colleagues at Harvard as racist,” Dr. Haidt said. “Open-minded inquiry into the problems of the black family was shut down for decades, precisely the decades in which it was most urgently needed. Only in the last few years have liberal sociologists begun to acknowledge that Moynihan was right all along.” – John Tierney, The New York Times, Social Scientist Sees Bias Within, February 7, 2011